Condenser.



W.v A. MOPFAT.

CONDENSER.

APVPLIUATION FILED MAR.B,1907. RBNEWBD MAR.12,1909.

923,684., Patented June 1, 1909.

@XM www@ i W mi @h 6em@ NrTED. sr-ATEs PATENT OFFICE.'

` WALTER ANDREW MOFFAT, OF DENVER, COLORADO, l.fissrGNoR To THE IMPROVED BOILER FEED' COMPANY, OF DENVER, COLORADO, ACORPORATTON OF COLORADO.-v

CONDENSER.

'specification omettere Patent.

Patente'June 1, 19Q9.

Application filed March 8, 1907, Serial No. 361,329. Renewed March 12, 1909. Serial No. 483,027.

To all lwhom it may con-cern:

Be it .known that- I, WALTER ANDREW- MOFFAT, a citizen of the United States, residmg at Denver, in the county of Denver and- .State of Colorado, have invented new and usev ful Improvements in Condensers for Steam Systems, of which the following is a speci-A fication.

"This `invention relates to a combinedl atmospheric and water condenser of that type employed 1n con'nect1on wlth an exhaust 'heater and is designed for use more particularly with feed water heaters such as that disclosed in the United L States Letters Patent Xo. 822,972, granted to me lon the 12th of January, 1906, although the present linvention is not necessarily limited to-tln's use.

The invention has for one of lts objects to improve and simplify the construction and operation of apparatus of this character so -as to vbe comparatively easy 4andfinexpensive to manufacture, vthoroughly .reliable and eilicient in use and readily cont-rolled.

A further object of the invention is to prol videa condenserof simple form adapted to receivethe exhaust steam after passing through the exhaust heater for the feed water; the steam being acted upon by the atmospherey and cooling water in suchy a manner that practically all vthe steam iscon'densed and collected.

`Another object of the invention is the employment of a tank for receiving thel water of condensation and the cooling water, the said tank being arranged above the exhaust heater so as to discharge into the heaterto which it is connected by a pipe having a check valve that opens toward the heater when the tank becomes filled.

lYith these objects in view and others, as will appearas the description proceeds, the invention comprises the various novel .fea-

tures of' construction and arrangement ofparts whichwill be more fullydesc-ribed hereinafter and set forth with particularity in the claims appended hereto. l

ln lthe accompanying drawing, which illustrates one of the embodiments of the invention. Figure 1 is a vertical section ofthe ap- -paratusA Fig. 2' is a horizontal detail sectional View on line 2 2, Fig. 1.

Similar reference characters are employed to designate similar parts throughout the several views. -f

Referring to the drawing, 1 designates the which are arrangedy a plurality of iiues or tubes 2 connected with plates 3 disposed ,inwardly from the heads 4 on the cylinder 1. The exhaust steam from the engines or other apparatusis received from a pipe 5 connected with the bottom head 4 of the exhaust'heaten andthe steam passes up'- wardlythrough the iues 2 to the exhaust changev pipe ,7 to the condenser designated being carried ofi bymeans of a vdrip pipe in head 4. The.body .of water 9'. in the heater. is raised in temperature by 'thev ex- -haust steam. Above the. body of water 9 is a s team space 10 that is Aadapted to'be connected by an equalizing pipe 11 with ,the steam space of the tank of `the feed water heater disclosed in the L tters Patent hereinbeforereferred to and the o er end of heater s0 as to feedthe boilerwith which the apparatus is used. By this arrange# ment, the water from the exhaust heater 1 will flow by gravity to 'maintain the supply `in the boiler. {Colinected with the steam vspace-10 of the exhaust heater is a safety has connected therewith av rope 15 or 4equivalent means whereby the attendant can openthe valve at will and thereby rendering vthe apparatus a'closed or open heater.

The condenser 8 comprises a pair of metallic cones 16 that may be made of perforated material or screening of suitable mesh. so that cooling water can be disof dropping vertically through the perforations. These cones are slightly spaced apart by washers 17 on bolts 18 and the lower ends of the' cones are formed into annular eave generally by 8, the water of condensationvalve 13 having a weight@ lever 14 that cylindrical casingl of an exhaust heater in steam space 6 and thence through the disthecylinder 1 is connected by a water discharging'pipe 12- with the said feed watercharged upon the outer cone without danger troughs 19 and 20, the latter being arranged internally' so as to collect lthew-,ater flowing downl on the internal surface of the cone. lncrder to prevent the wa "from liowing out between the `cones, a g'21'issecured ,between the cones adj acei'i't the-"troughs and this ring has an opening 22, as shown in Fig. 2, for permitting the water to discharge. Each trough has. an opening 28 arranged adjacent the opening 22 and a common spout 24 is employed to convey away the cooling water and the water of condensa- V tion.

Disposed above the apex of the cones is a globe valve 25 connected with a water supply pipe 26, whereby water is evenly distributed from the outer cone 1'6.

Su portedon the exhaust heater and dispose between the same and the condenser is a Water'tank`27 'of `any suitable capacity veyed to `theheaterso asY to raise the tem.

`the advantages of the construction and of the method ofy operation will be readily apparent to those skilled in the art to which the Iinvention appertains.

-'lnoperation'7 the exhaust heater is sup-A plied'with water and placed-under steam .pressure through the pipe 11 and the steam from the engine orother apparatus is conperature of the water therein and after passing through the heater, the exhaust steam discharges into the condenser 8 where it is acted upon by the atmosphere and also by the sheet of water flowing `down over the outer cone ofthe latter, and'since the cones of the condenser are perforated, the steam is exposed to this water-so that the condensing of the steam is effectually accomplished.

The supply of cooling water is. so regulated as to make up for the losses in the system, due to evaporation,and this water collects in the trough 19, while the water'of condensation collects in the trough 2O and from both troughs the water collects in the tank 27.

When vthe tank becomes illed, the weight of the water will cause the check valve 29 to open, assuming that the cut-ofi valve 30 is open, so that thewa'ter will iow into the exhaust heater. To assist this discharge from the tank, the safety valve 13 may be opened by the-attendant, whereby the pressure in the exhaust heater is relieved.

eea-eea I have described the princi le of operation `of the invention, together with the apparatus which l now consider to be the best embodiment thereof, but l desire to have it understood that the ,a paratus shown is merely illustrative and t iat such changes may be' made when desired, as are Within the 'scope of the claims.

Having thus described the invention, what lf claim is i 1. In an apparatus of the class described, the combination of an exhaust heater consisting of a steam-tight Vchamber having fines extending therethrough, means for discharging steam to thel bottom ofthe heater, a pipe permanentlyT open to the latmosphere and connected with the top of the heater for receiving thesteam after passin through l:he flues, anatmospheric condenser ocated above the lpipe and o en at its bottom to receive .the steam from t e latter,l means on the condenser for collecting the water of condensation, a tank disposed below the condenser, means for draining the water of condensation by gravity into the tank at the top thereof, and means for discharging water from the tank by gravity from the bottom of the tank to the heater.

2. In an apparatus of the class described,

the combination of an exhaust heater, a discharge 'ipe delivering steam freely into the atmospliere, a condenser disposed' directly above the pipe to receive the steam from the latter, means on the condenser foncolle'cting the water of condensation, means arranged to discharge cooling water on the oui-iside of the condenser, a tank suplportedA above the heater and below thevconi ensei, a common device for delivering steam and cooling water to the top of the tank, and a controllable connection between the bottom of the tank and top of the heater.

3. Acondenser comprising two nested cones of perforated sheet metal having their lower edges bent respectively into internal and external ltroughs, in combination with means for discharging cool water upon the exterior of the outer cone.

4. A condenser comprising two closel f nested cones of sheet metal through which steam and water pass, devices for securing the cones together and supporting'one on the other, spacmg means between the concs and mounted on the devices, and internal and external troughs on the bottom of the condenser.

5. In an apparatus of the class described,

vthe combination of an exhaust heater, means connected with the bottom of the heater for supplying exhaust steam thereto, a discharge pipe at the top of the heater, an atmospheric condenser disposed above the pipe and spaced therefrom, means above the condenser for discharging cooling lwater upon the same, a

tank intermediate the condenser and heater and e Safety deviceconnected with the steam and supported on the latter and supporting space of the heater. 10 the con ensei', means for delivering cooling In testimony whereofylvafix my signature -waterend Water of condensation to the tank, l in lpresel'ioe of two witnesses. 5 a pipe between the bottom of the tank and- WALTER 'ANDREW MOFFAT.

top of the lbesitzen-e. check Valve in the pipe fitnessesz opening toward the heater, a cut-off valve in DAVD B. GRAHAM,

'the pipe between the heck velveand heater, KATHA'RINE GRACE. 

